(translated) It is a 4K video shot with real-time close-up taken at the opening moment of 2 minutes. You can see the Prominence, which changes shape every time you turn around two half turns around the sun. RST-150H mount is not only rotated by image processing, but also tracking the sun and rotating the sun about two and a half turns at the same time. This feature was successfully used in the prototype mount of the RST-150H at the time of the Japanese solar eclipse in 2016, but it was thick cloudy and could not disclose the image. The real-time video of the full-disk is a little bit monotonous, but it is a big advantage that the video does not seem to feel boring at all in those two minutes.

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